Rules are buggy if folders deleted
If a folder is deleted, rules referencing folder coming alphabetically later erroneously change the folder they refer to.Example: I have folders A B C and D. A rule filters incoming mail and moves it to folder C. I then delete folder B. The rule will erroneously move to folder D afterwards.
It looks like the rule keeps the index/position of the folder to move to instead of the name.
I have same problem. (airmail 3 3.5.3)The rules referencing a folder seem to change inbox to drafts (the one right after) and MOVE TO folders to the ones right after or before. I fix all my rules, save, quit, and reverted to wrong folders on next open. Turning off iCloud Sync does not help. In fact, that goes back on too.